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Service bulletin PIT5905A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10236148
Published by NHTSA2023-05-15
Manufacturer's numberPIT5905A
Manufacturer's date2023-04-14
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Preliminary information communicates ordering process for front drive unit (S8L) and rear drive unit (P79) restriction for the 2022 MY GMC HUMMER EV and HUMMER EV SUV.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
GMC HUMMER EV PICKUP2022, 2023
GMC HUMMER EV SUV2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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